Question

If sin A equal to 11 by 15 then cos A = ??

Answer 1

Answer:

then cos A=14/10 ☺☺☺☺☺☺☺

Answer 2

Answer:

SinA=11/15

CosA=?

Let a=11,b=15,c=?

$b{ }^{2} = a {}^{2} + c {}^{2}$

225=121+?

225-121=10.19

CosA=10.19/11